Watch List notes:

SICILY, SILVER TETRADRACHM OF MESSANA, ca. 420-413 BC, 17.20g, 6h. NAC 2006 (33) lot 76 (same dies). Caltabiano 509. Of the highest rarity, less than ten specimens known. Attractively toned. Struck on a very broad flan on sound metal. A masterpiece of superb style and work of an otherwise unknown master engraver. Areas of weakness, otherwise, good very fine. Former French private collection, thence by family descent